Spike.



PATENTED SEPIT 3, 1907.

L. 11mm.l

SPIKE.

APPLIoA'rIox Hum un z5. 190e.

orrron.

LOUIS DUB, OF ALBANY, NEW YORK.

SPIKE Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed May 25,1906. Serial No. 318,769.

To all whom it may concern:

Be it known that LOUIS DUB, a citizen ofthe United States, residing atAlbany, in the county of Albany and State of New York, has inventedcertain new andsuseful Improvements in Spikes, of which the following isa specification.

This invention relates to a two part railroad spike.

The object oi the invention is to provide a two part spike comprising aspike member and a locking member, the latter being driven into a tie tohold the spike member in position to prevent lateral displacement.

The invention also consists in providing essential and specific detailsof construction whereby a commercial and economical structure isproduced. v

In the drawings- Figure l is a view illustrating the application of myinvention. Fig. 2 is an end elevation, partially in section. Fig. 3 isan elevation of the locking member. Fig. 4 is a section of the same onthe line xgx, Fig. 2. i

The numeral l, indicates a spike member, formed with a head 2, and achisel end 3. On one iace of the spike member is formed a groove 4, andon the opposite face are outwardly projecting studs 4, beveled on thebottom to readily pass into the wood when driven in'place. The grooveextends from the upper end o the spike member to a point near thebottom.

Coperating with the spike member is a locking member 6, provided with abeveled end 7, a head 8, and

a projection 7n.

In operation, the spike member is driven into the tie in the usualmanner until the head rests on the flange of the rail, in Figs. l and 2.Then the beveled end oi the Alocking member is driven into the tie andagainst the facev of the spike member, with the projection in the grooveand as the locking member is slightly beveled it wedges the studs intothe wood and the head against the rail, and absolutely prevents thespike working its way out of position. By reason of the projection 7,

fitting in the groove 4, the locking member will follow closely the pathof the spike, so that the latter is acted upon throughout its wholesurface.

What I claim is- 1. A spike consisting of two parts, the iirst parthaving one surface beveled and provided with outwardly project ingteeth, the second part being beveled and having a fiat face, one parthaving a projection and the other part a groove, the groove extendingfrom one end to a point near the other end 0f said grooved part, theprojection tting in the groove to guide the said second part parallelwith the first part to insure of all the teeth being uniformly drivenlaterally into the wood which receives the spike. i

2. A `spike consisting of two parts, the first part having one surfaceprovided with outwardly projecting teeth, and havingl a groove formed onits opposite surface, said groove extending' from one end to a pointnear the other end, the second part having a projection which rits inthe groove to guide said second part parallel with the rst part toinsure of all the teeth 'being' uniformly driven laterally into the woodwhich receives the spike.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LOUIS DUB.

Witnesses:

JNO. J. OHARE, CHARLES SnLKmK.

